7 7/8 inch IADC 537 TCI tricone bit
First of all we want let you know that we are one of more than 20
years manufacture located in Hejian City Hebei China.
We have so many clients from all over the world and not with the
lowest price win clients' choose, we depend on the quality to do
business for every client. We know business not easy and get one
client also very difficult so we must service in good faith. So
please remember our promise that what you pay what you gain. We
will honest offer the equal quality goods for you.
1 Q: Are you manufacture?
A: Yes, we are and more than 20 years.
2 Q: Where are you located in?
A: We are located in Hejian City Cangzhou City Hebei China
3 Q:What are your main products?
A: Our mainly products are TCI tricone bit, steel tooth tricone
bit, single cone bit, HDD hole opener, PDC bit and PDC drag bit.
4 Q: What's your MOQ?
A: Our MOQ 1 piece, but if you just want sample test quality we
also can supply to you.
5 Q: How many days with your delivery?
A: We can delivery goods with 7 days if we have goods in stock, if
need produce with your demand we will negotiation with you.
More question you want to know, contact us feel free without
hesitation.No matter how far from us but communication without
borders.
How to choose a model | IADC | Rock formation | WOB (KN/mm) | PRM(r/min) | | 417/427/437 | Low compressive strength, high drill-ability and extremely soft
formation, like shale, clay, sandstone,etc. | 0.35~0.90 | 140~70 | | 447 | Low compressive strength, high drill-ability and soft formation,
like shale, clay, sandstone, soft limestone, salt rock, plaster
etc. | 0.37~1.00 | 140~60 | | 517 | Low compressive strength, high drill-ability and soft formation,
like shale, clay, sandstone, soft limestone, salt rock, etc. | 0.37~1.05 | 120~50 | | 527 | Soft formation with low compressive, like Low compressive strength,
high drill-ability and soft formation, like shale, clay, sandstone,
soft limestone, salt rock, anhydrite etc. | 0.35~1.05 | 120~50 | | 537/547 | Low compressive strength, medium hard formation with hard abrasive
interlayer, like Hard shale, anhydrite, soft limestone, sandstone,
dolomite with mezzanine, etc. | 0.50~1.05 | 110~40 | | 617/627 | High compressive strength, medium hard and thick hard interlayer,
like hard shale, limestone, sandstone, dolomite, etc. | 0.50~1.05 | 80~40 | | 637/737 | High compressive strength, medium hard and high abrasive formation,
like limestone, dolomite, sandstone, chert, etc. | 0.7~1.20 | 70~40 |
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